Stopcock and check-valve



, 'if w wwwwwwwww w wwwwwwwww CHARLES C. KOPLIN,'OF BARTLESVILLE, OKLAHOMA.

STOPCOCK AND CHECK-VALVE.

Specication of Letters Patent.

Patented Feb. s, 1921.

Application mea :rune 1,- 1920. serial No. 385,797.

To all whom it may concern:

' Be it known that I, 'CHARLES C. Konan, a citizen of the -United States, residing 1n the city of Bartlesville and State of Oklahoma, have invented new and useful Improvements in Stopcocks and Check-Valves, of which the following is a specification, reference being Ahad to the accompanying drawings.

This invention is in the nature of a combination stop cock andcheck valve, for use in pipe lines or for other similar purposes where it is desired to locate la valve of this kind to facilitate the passage of the fluid in one direction, with means for automatically checking the fluid against return in the opposite direction; and the main purpose of the present device is to afford a check valve of this kind provided also with a stop-cock mechanism whereby the ,valvev may be positively set in open position or in closed position, as desired, by merely turning the handle.

Another object is to provide a valve of this characterin a simple, practical and efficient form best adapted for the purposes intended.

In the drawings:

Figure 1 represents a this improvement.

' Fig. 2, a vertical, longitudinal, sectional view taken on the line 2-2 in Fig. 1.

Fig. 3, a detail of theJ stop-cock shaft.

Referring specifically vto the drawings, this invention in its preferred construction consists of a casing 1, with the ingress and egress ports 2 and 3 extended through opposite sides thereof. A branch egress port 4 is preferably provided and normally closed by means ofthe screw cap 5. Interiorly of the casing 1 is the wall 6 which yis formed integrally with the body of the casing 1. This wall G-is preferably inclined as shown, and so located as to pass the fluid through either of the ports 3 or 4, as desired. A central circular valve port 7 is cut through the wall 6. Pivotally mounted above the port 7 is the check valve 8, pivoted at 9, and thus adapted to open upwardly to pass the fluid through the casing 1 or to close downwardly against the wall 6 to prevent the return lof the fluid. Extended from the check valve frontal elevation of 8 is the integrally formed finger 10 which extends back along and is spaced away from the face ofthe valve 8 so as to leave a suf-` Acient :space through which may be mounted the stop-cock shaft 11. This stop cock shaft 11 is journaled transversely through the casing l and has a handle 12 at its -outer end by which the shaft 11 is operated or turned. The shaft 11 is provided with a central cam 13 extended from one side thereof and the opposite 'side .of the shaft is chambered or outcut as shown at 14. So formed, the stop; cock shaft 11 is mounted through the casing as stated so that the cam 13 and the cutout 14 will be below the finger 10 as the shaft 11 is rotated. Upon the upper faceI of the valve 8 is rigidly mounted a wedge shaped step 15, and thus, as the shaft 11 so formed and mounted is rotated by turning the handle 12, the cam 13 is adapted to im: pinge upon the step 15 and thus force the valve 8 `firmly down upon the Wall 6; thus permanently closing the vport 7. In this operation the finger 10 becomes positioned or falls within the cutout 14.k Reversely by turn-v ing thek handle 12 in an opposite direction the cam 13 forces the finger 10 upwardly, thus opening the 'valve 8 and holding same in thatposition. Then by turning the handle 12 on around, the cam v13 passes out of contact with the finger 10 and the valve 8 is left free to swing upon its pivot 9 and thus act as an ordinary check valve.

It will thus be seen that this device may be used both as a stop-cock for permanently closing orfpermanently opening the passage way or .on the other hand by throwing the cam 13 downwardly out of engagement With the finger 10 and the step 15, the device will operate as an ordinary check valve.

While I have herein described a certain specific method of constructing and assembling the elements of my invention, it is understood same may be varied in minor details, not departing from the spirit of my invention as defined in the appended claims.

What I cla-im to be new and patentable is:

1. A combination stop cock and check valve, comprising a casing having a `port of ingress and portsof egress one of said egress Aports being normallyA closed; an inclined wall interposed between the port of ingress andthe other ports; a valve port cut through said wall; a check valve pivoted over said valves. port; a finger rigidly mounted upon said check valve-and extended back across its face in spaced relation thereto; a wedge shaped step rigidly mounted on the kouter face of the check valve beneath and alined with said finger; a stop cock shaft journaled transversely through Y the casing, between said finger and check valve; a cani formed upon one side of the stop cock shaft, adapted to engage said finger and step alternately as the shaft is rotated, and a cutout formed upon the opposite side to receive said finger as the cam engages the Wedge; and a handle mounted at the outer end of the stop cock shaft as means for turning same. i

2. A combination stop cock and check valve, comprising acasing having an inlet port and an outlet port; a ivall separating the inlet port from the outlet port; a valve port cut through said Wall; a check valve pivoted over said valve port; a finger rigidly mounted upon said check valve and extended back across its face in spaced relation thereto; a wedge shaped step rigidly mounted on the outer-face of the check valve beneath and alined with said finger; a stop-cock shaft journaled transversely through the casing,lbetween said finger and check valve; a cam formed upon one side of the stop cock shaft, adapted to engage said finger and step alternately as the shaft is rotated` andv a cutout formed upon the-opposite side to receive said finger as the cam engages the Wedge; and a handle mounted at the' outer end of the stop cock shaft as means for turning same.

3. A combination stop cock and check valve, comprising a casing having a port of ingress and ports of egress one of said egress ports being normally closed; an inclined `Wall interposed between the port of ingress and the other ports; a Valve port cut through said Wall; a checkvalve pivoted over said valve port; a finger rigidly mounted upon said check valveand extended back across its face in spaced relation thereto; a Istopcock shaft havinga cam and cutout oppositelyffornied thereon and transversely journaled through the casing between the finger and check valve, the cam being adapted to impiiigc the linger to hold the valve open, and to impinge the check valve to hold same shut, and to be turned into neutral position to allow the check valve to oscillate freely as such; anda handle mounted at the outer end of the stop-cock shaft .as means for 'turning same.

4. A combination stop lcock and check valve; comprising a casinghaving a port of ingress and ports-of egress one of said egress ports being normally closed; an inclined Wall interposed between the port of ingress and the other ports; a valve port cut through said Wall; a check valve pivoted over said valve port; a finger rigidly mounted upon said check valve and extended back across its face in spaced relation thereto; a stopcock shaft journaled transversely through the casing, between said nger and check valve; a cam and cutout formed on opposite sides of the stop-cock shaft, the cam being adapted to` impinge alternately'said finger and check valve, or to Aclear both, as the shaft is rotated, While the cutout affords clearance room for the finger; and a handle 'v70 mounted at the outer end of the stop cock v shaft as means for turning same.

l CHARLES C. KOPLIN. Vitnesses PAUL S. WEBB.; L. A. RUNNER. 

